随机聚化作为一种设计策略,用于调节全聚合物太阳能电池的NDI基聚合物受体中的聚合
Dasol Chung1, Stephanie Samson2, Sungmo Moon3
1Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea.
ACS macro letters
|March 26, 2025
概括
研究人员调节了聚合在全聚合物太阳能电池 (全PSC) 的纳夫他林二胺 (NDI) 基聚合物受体中的聚合. 在聚合物PNDI-T21中,最弱的聚合导致了最高的功率转换效率5.3%.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可再生能源可再生能源是可再生能源.
背景情况:
- 基于纳夫他林二胺 (NDI) 的合聚合物是全聚合物太阳能电池 (全PSC) 的关键组成部分.
- 这些聚合物的强烈自我聚合可以导致有害的相位分离和低于最佳的供体-受体混合.
- 控制聚合物聚合对于提高所有PSC的性能至关重要.
研究的目的:
- 研究随机聚合对基于NDI的聚合物受体聚合物的聚合行为的影响.
- 通过调节聚合物聚合,提高全聚合物太阳能电池的性能.
- 为所有PSC应用合成和表征新型聚合物.
主要方法:
- 通过随机聚合合成四种聚合物 (PNDI-T21,PNDI-T23,PNDI-T25,PNDI-RT) 的合成,将烯衍生物纳入参考聚合物 (PNDI-T2).
- 聚合物聚合和结晶性受烯含量和骨干随机性影响的表征.
- 使用合成的高聚合物作为接受器的全聚合物太阳能电池的制造和性能评估.
主要成果:
- 聚合物调节了脊柱平面性和聚合,随着硫含量增加,通常会增强聚合.
- 一个高度随机的骨干结构被发现可以减少聚合和结晶性.
- 在所有PSC中,聚合最弱的聚合物 (PNDI-T21) 显示出最高的功率转换效率 (5.3%).
- 聚合最强的三聚合物 (PNDI-T25) 的功率转换效率最低 (3.2%).
结论:
- 随机聚合是一种有效的策略,可以控制基于NDI的聚合物受体的聚合.
- 通过可控的聚聚合物优化聚合物聚合物可以显著提高所有PSC的性能.
- 聚合和骨干结构之间的平衡对于实现全聚合物太阳能电池的高效率至关重要.
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